King County Metro, in partnership with the Seattle Department of Transportation (SDOT) and the City of Burien, is working to upgrade Metro Bus Route 120 – one of our busiest routes – to the RapidRide H Line. Service is scheduled to launch in March 2023.
We will be sending email updates monthly to keep you informed on what to expect near you. We’ll also be reaching out to route neighbors, businesses, and local community organizations throughout construction to notify them when and where work will happen, as well as what impacts to expect.
Please feel free to share this information with your neighbors and encourage them to sign up for project email updates.
Join us for our next virtual construction office hours
September 22, 2022, 5pm-6pm on Zoom
Join us online (meeting ID: 867 4154 5962) or by phone (1-253-215-8782)
To request interpretation services for these virtual events, please contact us before the meeting via phone, at 206-257-3079, or email us at rapidride@kingcounty.gov
Businesses are open during construction
With construction ongoing throughout the project area, Metro is reminding the public that businesses throughout the project area remain open. Visit our Metro Matters blog to learn more about Metro’s ongoing work in the Seattle, White Center, and Burien communities.
What to expect during construction
Construction on the RapidRide H Line project began in June 2021 and is expected to last through spring 2023. Typical work hours are Monday through Friday, 7 a.m. to 3:30 p.m., with some nighttime and weekend work.
During construction, you can expect:
- Noise, vibrations, and dust in the project area
- Temporary parking restrictions
- Periodic lane and driveway closures
- Large machinery and truck activity
- Construction staging and parking impacts near the construction site
- Some sidewalk, intersection, and lane closures
- Detours for people walking, biking, and rolling
- Temporary bus detours and bus stop relocations for Route 120 and other area transit and bus routes.
- Flaggers to direct traffic around work area
Seattle

26th Avenue SW and SW Roxbury Street
- Pouring curb and gutter
- Removing existing lighting
- Pouring new light pole base
15th Avenue SW and SW Roxbury Street
- Pouring concrete for sidewalk
20th Avenue SW and SW Roxbury Street
- Sewer pipe installation
White Center

15th Avenue SW and SW 102nd Street
- Electrical work
15th Avenue SW and SW 107th Street
- Excavation
- Installing curbs, gutters, and ADA-compliant ramps
Ambaum Boulevard SW and SW 112th Street
- Pouring asphalt
Burien

16th Avenue SW and SW 112th Street
- Survey Work
Ambaum Boulevard SW from SW 116th Street to SW 122nd Street
- Placing asphalt in driveways
- Forming curb
- Electrical conduit work
Ambaum Boulevard SW and SW 128th Street
- Forming bus shelter foundations
- Pouring pole bases
Ambaum Boulevard SW from SW 130th Street to SW 150th Street
- Preparing and pouring curb ramp and sidewalk
- Demolition for sidewalk and curb ramp
- Excavation and grading for new pavement
Ambaum Boulevard SW and SW 142nd Street
- Pouring concrete for curb and foundations
- Electrical work
Ambaum Boulevard SW and SW 148th Street
- Demolishing and grading sidewalk
- Forming bus station zone
- Paving
SW 150th Street from Ambaum Boulevard to 5th Avenue SW
- Electrical conduit work
- Demolition and grading of roadway
SW 150th Street from 5th Avenue SW to Burien Transit Center
- Placing asphalt to fill gap and open roadway
- Installing ADA compliant ramp and sidewalk
Community Happenings
The South Delridge Farmers Market is taking place at HOPE Academy the second and fourth Saturday of the month from 10am-2pm, through October. Stop by to learn about what’s new at Metro and to ask our team questions. See you this weekend!
If you have community events to share in the area, let us know! Email us at rapidride@kingcounty.gov.
The Burien Farmers Market is open all year! Every Thursday from 10am-6pm (during May – October); and 10am-4pm (November – April), at the Burien Town Square Park. Stop by to talk with our team about what’s going on in your community.
If you have community events to share in the area, let us know! Email us at rapidride@kingcounty.gov.
Questions about construction? Contact us!
Thank you for your patience as we improve transit in your area. Keeping you informed and minimizing impacts are our top priorities. Throughout construction we will:
- Be available for questions
- Provide advance notice about construction through email updates, flyers, and other promotions
- Maintain access to businesses and residences
RapidRide H Line Outreach Team
- Construction hotline: 206-257-3079
- Email: rapidride@kingcounty.gov
- Webpage: kingcounty.gov/rapidride/h
Sign up for RapidRide H Line email or text alerts to stay up to date on construction schedule and impacts.